#288B90#288B90

#288B90 is a mid, moderate teal. Relative luminance 0.209; OKLCH L 58.4% C 0.088 H 200.0°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#288B90
RGB	rgb(40, 139, 144)
HSL	hsl(183, 57%, 36%)
HSV	hsv(183, 72%, 56%)
CMYK	cmyk(72.2%, 3.5%, 0%, 43.5%)
CIE-LAB	lab(52.87, -25.82, -10.85)
CIE-LCH	lch(52.87, 28.01, 202.79°)
OKLab	oklab(58.39% -0.0827 -0.0301)
OKLCH	oklch(58.39% 0.088 200)
XYZ	xyz(15.1395, 20.9282, 29.6218)
Luminance	0.2093 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B90 #902D28

analogous

#289061 #288B90 #285790

triadic

#288B90 #90288B #8B9028

tetradic

#288B90 #612890 #902D28 #579028

square

#288B90 #612890 #902D28 #579028

split-complementary

#288B90 #902857 #906128

monochromatic

#0D2F30 #1B5D60 #288B90 #35B9C0 #60CDD3

Accessibility & contrast

On white

4.05

#288B90 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#288B90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B90

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B90	#FFFFFF	#000000	##000000
##288B90	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#818590

Deuteranopia (green-blind)

#717991

Tritanopia (blue-blind)

#00908C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #288b90;
/* rgb */ color: rgb(40, 139, 144);
/* oklch */ color: oklch(58.4% 0.088 200.0);

Tailwind

colors: {
  custom: {
    50: '#73adb0',
    500: '#288b90',
    950: '#000000',
  },
}

SCSS

$custom: #288b90;
$custom-light: #73adb0;
$custom-dark: #000000;

JSON

{
  "hex": "#288b90",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 144
  },
  "hsl": {
    "h": 182.885,
    "s": 56.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.58392,
    "c": 0.088,
    "h": 200
  },
  "luminance": 0.2093
}

Semantic roles & 50–950 ramp

primary

#288B90

secondary

#B8605C

accent

#4F48E0

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #288B90

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →